Abstract:
The main door (1) for the control of the access opening to a compartment, particularly a garage compartment, comprises: - a fixed portion associable with the access opening of a compartment and comprising two lateral uprights (2) and an upper crossbar (3); - a mobile portion including a leaf (4, 5) associated in a mobile way with the fixed portion; - at least a pulley (27) associated revolving with the top of at least one of the lateral uprights (2) and on which winds up at least partially a cable (28) connected to the leaf (4, 5) and to a counterweight (29); - an operating shaft (30) of the pulley (27) mounted on the upper crossbar (3); - a winding-unwinding device (34) mounted on the upper crossbar (3) and having a flexible element (35) which can be wound and unwound which is associated with the top of the leaf (4, 5); - an electric motor (36) mounted on the upper crossbar (3) and suitable for placing a driving shaft (37) in rotation; and - a transmission and distribution unit (38, 39, 40) of the motion of the electric motor (36) which comprises: - a first electromagnetic clutch (38) placed between the driving shaft (37) and the operating shaft (30); - a second electromagnetic clutch (39) placed between the driving shaft (37) and the winding-unwinding device (34); and - an electronic processing and control unit (40) which is electronically connected to the first electromagnetic clutch (38) and to the second electromagnetic clutch (39) and which is suitable for operating the first electromagnetic clutch (38), to transmit motion from the driving shaft (37) to the operating shaft (30), and for operating the second electromagnetic clutch (39), to transmit motion from the driving shaft (37) to the winding-unwinding device (34).
Abstract:
The main door (1) for the control of the access opening to a compartment, particularly a garage compartment, comprises: - a fixed portion associable with the access opening of a compartment and comprising two lateral uprights (2) and an upper crossbar (3); - a mobile portion including a leaf (4, 5) associated in a mobile way with the fixed portion; - at least a pulley (27) associated revolving with the top of at least one of the lateral uprights (2) and on which winds up at least partially a cable (28) connected to the leaf (4, 5) and to a counterweight (29); - an operating shaft (30) of the pulley (27) mounted on the upper crossbar (3); - a winding-unwinding device (34) mounted on the upper crossbar (3) and having a flexible element (35) which can be wound and unwound which is associated with the top of the leaf (4, 5); - an electric motor (36) mounted on the upper crossbar (3) and suitable for placing a driving shaft (37) in rotation; and - a transmission and distribution unit (38, 39, 40) of the motion of the electric motor (36) which comprises: - a first electromagnetic clutch (38) placed between the driving shaft (37) and the operating shaft (30); - a second electromagnetic clutch (39) placed between the driving shaft (37) and the winding-unwinding device (34); and - an electronic processing and control unit (40) which is electronically connected to the first electromagnetic clutch (38) and to the second electromagnetic clutch (39) and which is suitable for operating the first electromagnetic clutch (38), to transmit motion from the driving shaft (37) to the operating shaft (30), and for operating the second electromagnetic clutch (39), to transmit motion from the driving shaft (37) to the winding-unwinding device (34).